Latitude: 45°34'20"N
Longitude: 73°36'50"W
The quarry has been inactive since 1981 and will never be active again. It is in the central part of the city of Montréal (pop. over 2.5 million), in a residential area, and owned by the City. It is used for snow dumping in winter. Actually, the quarry could be listed by its city address: 3701 rue Jarry Est, Montréal.
The island of Montréal is overlaid with limestones which have been intruded by the main Mont Royal (the type Monteregian Hill) alkaline intrusion and numerous genetically related sills and dikes of varying compositions. The dawsonite-rich carbonatite sills of the Francon quarry have a rather unique mineralogy, not found anywhere else in the region.
Mineral List
89 entries listed. 80 valid minerals. 10 type localities (valid minerals).
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References
JAMBOR, J.L., SABINA, A.P., ROBERTS, A.C., BONARDI, M., RAMIK, R.A., and STURMAN, B.D. (1984) Franconite, a new hydrated Na Nb oxide mineral from Montreal Island, Quebec. Canadian Mineralogist, 22, 239 243.
JAMBOR, J.L., SABINA, A.P., ROBERTS, A.C., BONARDI, M., OWENS, D.R., and STURMAN, B.D. (1986) Hochelagaite, a new calcium niobium oxide mineral from Montreal, Quebec. Canadian Mineralogist, 24, 449 453.
JAMBOR, J.L., STURMAN, B.D., and WEATHERLY, G.C. (1980) Sabinaite, a new hydrous zirconium bearing carbonate mineral from Montreal Island, Quebec. Canadian Mineralogist, 18, 25 29.
SABINA, A.P. (1968), revised (1983) Rocks and Minerals for the collector. Kingston, Ontario to Lac St Jean, Quebec. Geological Survey
of Canada paper 67 51 (1968), Misc. Report No. 32 (1983), 46 49.
SABINA, A.P., JAMBOR, J.L., and PLANT, A.G. (1968) Weloganite, a new strontium zirconium carbonate from Montreal Island, Canada. Canadian Mineralogist, 9, 468 477.
Jambor, J.L., Sabina, A.P., Ramik, R.A., and Sturman, B.D. (1990) A fluorine-bearng gibbsite-like mineral from Francon quarry, Montreal, Quebec. Canadian Mineralogist: 28: 147-153.
Tschernich, R. (1992): Zeolites of the World, p.52, 239, 342
Tarassoff, P. , Horváth, E. and Pfenninger-Horváth, E. (2006). Famous mineral localities: the Francon quarry, Montréal, Québec. The Mineralogical Record, 37 (1) : 5-60.
Tarassoff, P., Horváth, E. and Pfenninger-Horváth, E. (2006): Francon Revisited. Mineralogical Record 37 (3): 257-263
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